Title :
Layered DCT video coding for embedded data transmission over BISDN
Author :
Mitrakos, D.K. ; Constantinides, A.G.
Author_Institution :
Dept. of Electr. Eng., Imperial Coll., London, UK
Abstract :
From a layered DCT coding approach, this work introduces a two-dimensional Markov model that captures realistically the time-varying character of the video transmission process and develops a rate control mechanism that helps decisively either in increasing bandwidth utilization or improving the quality of transmitted video under the constraint of least available access rate. This property is not apparent in conventional systems that depend simply on reservation of extra capacity in order to cope with the time-varying nature of channel capacity requirements of video signals
Keywords :
ISDN; broadband networks; data communication systems; encoding; picture processing; transforms; video signals; BISDN; access rate; bandwidth; channel capacity; data transmission; layered DCT coding; rate control; two-dimensional Markov model; video coding; video quality; video signals; video transmission; Bandwidth; Data communication; Discrete cosine transforms; Distortion; Image coding; Image decomposition; Image reconstruction; Source coding; Surges; Video coding;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1991. ICASSP-91., 1991 International Conference on
Conference_Location :
Toronto, Ont.
Print_ISBN :
0-7803-0003-3
DOI :
10.1109/ICASSP.1991.150994
